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-rw-r--r--kmid/klcdnumber.cpp339
1 files changed, 339 insertions, 0 deletions
diff --git a/kmid/klcdnumber.cpp b/kmid/klcdnumber.cpp
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+++ b/kmid/klcdnumber.cpp
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+/**************************************************************************
+
+ klcdnumber.cpp - The KLCDNumber widget (displays a lcd number)
+ Copyright (C) 1998 Antonio Larrosa Jimenez
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Send comments and bug fixes to larrosa@kde.org
+ or to Antonio Larrosa, Rio Arnoya, 10 5B, 29006 Malaga, Spain
+
+***************************************************************************/
+#include "klcdnumber.h"
+#include <qpainter.h>
+#include <stdio.h>
+#include "ktrianglebutton.h"
+
+#define BUTTONWIDTH 9
+
+KLCDNumber::KLCDNumber(int _numDigits,QWidget *parent,const char *name)
+ : QWidget(parent,name)
+{
+ initDigits();
+ setUserChangeValue=false;
+ numDigits=_numDigits;
+ value=0;
+ minValue=0;
+ maxValue=1000;
+ oldvalue=-1;
+ // setPalette( QPalette (QColor(0,0,0)));
+ upBtn=NULL;
+ downBtn=NULL;
+ setUserDefaultValue=false;
+ doubleclicked=false;
+ setLCDBackgroundColor(0,0,0);
+ setLCDColor(100,255,100);
+}
+
+KLCDNumber::KLCDNumber(bool _setUserChangeValue,int _numDigits,QWidget *parent,const char *name)
+ : QWidget(parent,name)
+{
+ initDigits();
+ setUserChangeValue=_setUserChangeValue;
+ numDigits=_numDigits;
+ value=0;
+ minValue=0;
+ maxValue=1000;
+ oldvalue=-1;
+// setBackgroundColor(QColor(0,0,0));
+// setPalette( QPalette (QColor(0,0,0)));
+ upBtn=NULL;
+ downBtn=NULL;
+ setUserDefaultValue=false;
+ doubleclicked=false;
+ setLCDBackgroundColor(0,0,0);
+ setLCDColor(100,255,100);
+ if (setUserChangeValue)
+ {
+ upBtn=new KTriangleButton(KTriangleButton::Right,this,"Up");
+ downBtn=new KTriangleButton(KTriangleButton::Left,this,"Down");
+ upBtn->setGeometry(width()-BUTTONWIDTH,0,BUTTONWIDTH,height());
+ downBtn->setGeometry(0,0,BUTTONWIDTH,height());
+ connect(upBtn,SIGNAL(clicked()),this,SLOT(increaseValue()));
+ connect(downBtn,SIGNAL(clicked()),this,SLOT(decreaseValue()));
+ connect(upBtn,SIGNAL(clickedQuickly()),this,SLOT(increaseValueFast()));
+ connect(downBtn,SIGNAL(clickedQuickly()),this,SLOT(decreaseValueFast()));
+ };
+}
+
+void KLCDNumber::initDigits (void)
+{
+Digit[0] = digit(true,true,true,false,true,true,true);
+Digit[1] = digit(false,false,true,false,false,true,false);
+Digit[2] = digit(true,false,true,true,true,false,true);
+Digit[3] = digit(true,false,true,true,false,true,true);
+Digit[4] = digit(false,true,true,true,false,true,false);
+Digit[5] = digit(true,true,false,true,false,true,true);
+Digit[6] = digit(true,true,false,true,true,true,true);
+Digit[7] = digit(true,false,true,false,false,true,false);
+Digit[8] = digit(true,true,true,true,true,true,true);
+Digit[9] = digit(true,true,true,true,false,true,true);
+Digit[10] = digit(false,false,false,false,false,false,false);
+}
+
+void KLCDNumber::resizeEvent ( QResizeEvent *)
+{
+ if (setUserChangeValue)
+ {
+ upBtn->setGeometry(width()-BUTTONWIDTH,0,BUTTONWIDTH,height());
+ downBtn->setGeometry(0,0,BUTTONWIDTH,height());
+ }
+}
+
+void KLCDNumber::drawVerticalBar(QPainter *qpaint,int x,int y,int w,int h,int d)
+{
+ /* If d is 0 it means that it is a bar on the left and if 1 it is on the right */
+ /*
+ |\ /|
+ | | | |
+ | | = 0 1 = | |
+ | | | |
+ |/ \|
+ */
+
+ y++;
+ h-=2;
+ if (d==0)
+ {
+ for (int i=x;i<x+w;i++)
+ {
+ qpaint->drawLine(i,y,i,y+h);
+ y++;
+ h-=2;
+ }
+ } else {
+ for (int i=x+w;i>x;i--)
+ {
+ qpaint->drawLine(i,y,i,y+h);
+ y++;
+ h-=2;
+ }
+ }
+}
+
+void KLCDNumber::drawHorizBar(QPainter *qpaint,int x,int y,int w,int h,int d)
+{
+ // 0 is upper, 1 is bottom and 2 is the middle bar.
+ x++;
+ w-=3;
+ if (d==0)
+ {
+ for (int i=y;i<y+h;i++)
+ {
+ qpaint->drawLine(x,i,x+w,i);
+ x++;
+ w-=2;
+ }
+ }
+ else if (d==1)
+ {
+ for (int i=y+h;i>y;i--)
+ {
+ qpaint->drawLine(x,i,x+w,i);
+ x++;
+ w-=2;
+ }
+ }
+ else
+ {
+ for (int i=0;i<=h/2;i++)
+ {
+ qpaint->drawLine(x,y-i,x+w,y-i);
+ qpaint->drawLine(x,y+i,x+w,y+i);
+ x++;
+ w-=2;
+ }
+
+ };
+
+}
+
+void KLCDNumber::drawDigit(QPainter *qpaint,int x,int y,int w,int h,digit d)
+{
+if (d.nw) drawVerticalBar(qpaint,x,y,w/5,h/2,0);
+if (d.ne) drawVerticalBar(qpaint,x+w*4/5,y,w/5,h/2,1);
+if (d.sw) drawVerticalBar(qpaint,x,y+h/2,w/5,h/2,0);
+if (d.se) drawVerticalBar(qpaint,x+w*4/5,y+h/2,w/5,h/2,1);
+if (d.up) drawHorizBar (qpaint,x,y,w,w/5,0);
+if (d.bt) drawHorizBar (qpaint,x,y+h-w/5,w,w/5,1);
+if (d.md) drawHorizBar (qpaint,x,y+h/2,w,w/5,2);
+}
+
+
+void KLCDNumber::setValue(double v)
+{
+ oldvalue=value;
+ if (v<minValue)
+ value=minValue;
+ else if (v>maxValue)
+ value=maxValue;
+ else
+ value=v;
+
+}
+
+void KLCDNumber::display (double v)
+{
+ setValue(v);
+ repaint(FALSE);
+}
+
+void KLCDNumber::display (int v)
+{
+ display((double)v);
+}
+
+
+void KLCDNumber::paintEvent ( QPaintEvent * )
+{
+ QPainter qpaint(this);
+ qpaint.fillRect(0,0,width(),height(),backgcolor);
+ qpaint.setPen(LCDcolor);
+
+ QString numStr;
+ numStr.setNum((int) value);
+ numStr = numStr.rightJustify( numDigits, ' ', true);
+
+ int dx,dy,dw,dh;
+ if (setUserChangeValue)
+ {
+ dx=BUTTONWIDTH;
+ dy=height()/10;
+ dh=height()-dy*2;
+ dw=(width()-(BUTTONWIDTH*2))/numDigits;
+ } else
+ {
+ dx=0;
+ dy=height()/10;
+ dh=height()-dy*2;
+ dw=width()/numDigits;
+ };
+ int sep=dw/10;
+
+ for(int i=0; i < numDigits; i++)
+ {
+ char dig = numStr[i].latin1();
+ if ((dig>='0')&&(dig<='9'))
+ drawDigit(&qpaint,dx+sep,dy,dw-sep*2,dh,Digit[dig-'0']);
+ else
+ drawDigit(&qpaint,dx+sep,dy,dw-sep*2,dh,KLCDNumber::Digit[10]);
+ dx+=dw;
+ };
+}
+
+void KLCDNumber::setUserSetDefaultValue(bool _userSetDefaultValue)
+{
+ if (setUserDefaultValue!=_userSetDefaultValue)
+ {
+ setUserDefaultValue=_userSetDefaultValue;
+ /* if (setUserDefaultValue)
+ connect();
+ else
+ disconnect();
+ */
+ }
+
+}
+
+void KLCDNumber::setDefaultValue(double v)
+{
+ defaultValue=v;
+}
+
+
+void KLCDNumber::decreaseValue()
+{
+ display( value-1 );
+ emit valueChanged( value );
+}
+
+void KLCDNumber::increaseValue()
+{
+ display( value+1 );
+ emit valueChanged( value );
+}
+
+void KLCDNumber::decreaseValueFast()
+{
+ display( value-1 );
+}
+
+void KLCDNumber::increaseValueFast()
+{
+ display( value+1 );
+}
+
+void KLCDNumber::mouseDoubleClickEvent (QMouseEvent *)
+{
+ doubleclicked=true;
+ defaultValueClicked();
+}
+
+void KLCDNumber::mousePressEvent (QMouseEvent *e)
+{
+ startTimer(200);
+ QWidget::mousePressEvent(e);
+}
+
+void KLCDNumber::timerEvent(QTimerEvent *)
+{
+ killTimers();
+ doubleclicked=false;
+
+}
+
+
+void KLCDNumber::defaultValueClicked()
+{
+ if (setUserDefaultValue)
+ {
+ display( defaultValue );
+ emit valueChanged( value );
+ }
+}
+
+void KLCDNumber::setLCDBackgroundColor(int r,int g,int b)
+{
+ backgcolor=QColor(r,g,b);
+ repaint(FALSE);
+}
+
+void KLCDNumber::setLCDColor(int r,int g,int b)
+{
+ LCDcolor=QColor(r,g,b);
+ repaint(FALSE);
+}
+
+void KLCDNumber::setRange(double min, double max)
+{
+ minValue=min;
+ maxValue=max;
+}
+
+QSize KLCDNumber::sizeHint()
+{
+ return QSize(83,28);
+}
+#include "klcdnumber.moc"
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